Husqvarna 226R, Workshop Manual

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522 43 18-01
Centrifugal clutch
The centrifugal clutch has the task of transferring the power from the engine to the cutting
equipment’s drive axle. As the name implies, it works according to a centrifugal principle.
This means the clutch’s friction shoes are thrown outwards towards the clutch drum at a certain
engine speed. When the friction against the drum is suffi
ciently great it drives the drive shaft at
the same speed as the engine.
Some slipping occurs between the clutch and the clutch drum when accelerating as well as in the
reversed situation when the cutting equipment jams. Thereby preventing abnormal load changes
on the crankshaft.
The engagement speed has been carefully tested so that the engine can idle without the cutting
equipment’s drive shaft rotating.
Centrifugal clutch
Dismantling
Dismantle the cylinder cover and the air
fi lter cover.
Separate the short-circuit cables and
disconnect the throttle cable.
Remove the screws holding the clutch
cover and lift off the assembly.
Centrifugal clutch
Dismantling
1. Remove the cover over the air fi lter.
2. Separate the short-circuit cables.
3. Disconnect the throttle cable from the
carburettor.
4. Dismantle the spark plug and the cylin-
der cover.
5. Remove the 4 screws holding the
clutch cover against the fan housing
cover.
6. Lift off the entire assembly.
Remove the two screws (E) holding the
centrifugal clutch.
Lift off the clutch.
Note the spacers between the fl ywheel
and the centrifugal clutch.
Place the piston stop in the spark plug
hole. Stop the piston from moving by inserting
piston stop 522 43 18-01 in the spark plug
hole.
Dismantle the centrifugal clutch.